Main rod for locomotives



Sept. 29, 1925. 1,555,183

E.'M.CARROLL MAIN ROD FOR hOCOMOTIVES Filed Oct. 6, 1 4

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I Gummy Patented Sept. 29, 1925.

EDWARD I'll. CARROLL, OF SANFORD, FLORIDA. I

,MAIN ROD FOR Application filed October 6,

To all whom it may CO'YLCCWH.

Be it known that I, EDWARD M. jnnnorn, a citizen of the United States of America, residing at Sanford, in the county of Seminole and State of Florida, have invented certain new and useful improvements i Main Beds for Locomotives, of which the following is a specification.

My inventionrelates to new and useful improvements in'main rods for locomotives, and especially to the rear end thereof.

()ne of the objects of the invention is to so construct the rear end of the rod that the bushing may be'easily changed, when desired, with a minimum amount of labor, or, in case of a breakdown, the rod can be easilyand quickly chained up to clear the pin without necessitating the removal of the rod or crank arm, the casing and bushing being left on the pin acting as a spacer block to keep the side rod in position when the engine is being run to the shop.

Still another object of the present invention is to provide a main rod havingits one end so constructed that the casing which encloses the brass bushing may be quickly and readily adjusted withregard to the pin so that the rod will not pound or knock when the bushing is held in its proper position.

Still another object of the invention to so construct the rear end of the rod so that thesame will accommodate the bushing,

shown in the patent granted to me on l ebru- Vith these and other objects in View, the invention consists in certain new and novel arrangements and combination of parts as will be hereinafter more fully described and pointed out in the claims.

Referring now to the drawings showing a preferred embodiment of the invention,

Fig. 1 is a fragmentary view of the rod showing the rear end thereof with the several parts in position.

LOCOMOTIVES.

1924. Serial No. 741,917.

Fig. 2 is a fragmentary sectional of tion of the main rod 1, with tl e rear end 9 having the aws in which there designed to be placed a box which is, in turn, provided standing flanges on the opposite side of o the casing so as to overlap the jaws, as may be clearly seen in Figs. 1 and 2. This casing is provided with the raised rim 6 on its opposite faces, while extending through the casing is the aperture 7 for the reception of the brass bushing 8 which should be tightly driven within the aperture. The bushing may be ofany desired thickness, and I have found that one may be used as thin as threeeighths of an inch.

Extending annularly and centraily of the casing about the aperture '2' is the oil or groove ring 9, while within the top of the casing is apassageway 10 designed to register with the ring 9 and with the passageway 11 within the head of the rod in which will be placed a grease cup 12. llhe brass bush-- ing 8 is provided with a i ality of small holes 13 which in turn 1' er with the oil ring or groove 9 so that a plentiful. supply of oil orgrease may be supplied at all times to the brass bushing and pin (not shown).

It is to be further noted that the casing 4 has one of its side walls beveled as at 14 so that a wedge member 15 may be placed within the jaws 3 and one portion thereof extend between one jaw and the side 14 of the casing, while the lower portion or base 16 of the wedge member contacts throughout with the lower face of the casing.

It is also tobe noted that this wedge member 15 and its base portion 16 are of substantially the same width as the thickness of the casing so that a maximum amount of contact may be had between the wedge member and the casing. This is desirable as it prevents any lateral or shifting movement of the casing within the jaws, and tightly holds the casing up in position.

In the left-hand jaw 3, there Will be noticed a rectangular opening 17 and a similar but larger 0 ening 18 in the opposite jaw. H o openings are provided for the reception oi the tapered rod 19 as shown in the several views, which rod in turn bears against the base 16 of the wedge 15 and the walls of openings and by having one end of the rod 19 threaded, as at 20, and by providing the cup 21, the nut when pulled up will tightly force the wedge, casing and bushing ace. To prevent the jaws from being p lied together too tightly, a spacer blocl: 2 'hrough which extends the opening it a bolt may be passed thi gh and thrbugh the openings 26 in the oiposite aws, the bolt securely holding the spacer block in position.

From the foregoing it will be seen that the r ar end oi the rod is extremely simple in const ction; that the bushing may quickly and easily removed, and that the entire arrangement consists of but relatively few parts, to wit, the casing and bushing, the wed e member, the tapered rod and spacer block. Furtnermore, the adjustment or the casing can be quickly attended to so that the bushing and casing will always be properly centered ano so that the other advantages mentioned in the torepart of the speci ication may be accomplished.

i am aware that it is old to use jibs and keys and wedges oi? different forms and construction, and I do not claim my invention broadly as such, but what i do claim and de sire to secure by Letters Patent is 1. A main rod for a locomotive the rear end oi which is provided with two jaws, a casing slidably fitting within the jaws and said casing provided with outstanding tianges to hold the casing against lateral movement, one wall of the casing being beveled, and a wedge member having a portion cooperating with the beveled wall and one of the jaws, and a further portion of the wedge member extending across the bottom wall oi the casing, a tapered rod passing through the opposite jaws and adapted to contact with the base of the wedge member to thereby tightly jam the casing in place, a spacer block held between said jaws, said casing being provided with a central aperture and a brass bushing itting within said aperture and said casing, bushing and upper portion of the end oi? the rod provided with passageways to supply grease to said bushing.

2. A. main rod for a locomotive, the rear end oi? which is provided with two jaws, a rectangular casing slidably fitting within said jaws, and said casing having outwardly extending flanges on its opposite faces to overlap the jaws, said casing provided with a central aperture and a bushing fitting within said aperture, the wall of the aperture provided with a groove and the said bushing provided with a plurality of holes registering with said groove, the upper portion of the rear end of the rod provided with an aperture registering with a groove in the casing to provide oil to said bushing, one wall oi the casing being beveled and a wedge member comprising a base the width or which is substantially the thickness of the casing and the other portion of the wedge member cooperating with the beveled wall of one of the jaws, tapered means passing through said jaws for contacting with the face of the wedge member and tightly forcing the casing in position'within the jaws, and a spacer block removably held between said jaws.

3. A main rod for a locomotive comprising jaws at the rear and thereof, a casing slidably fitting within said jaws and means cooperating with the jaw and two walls of the casing for holding the casing in position, tapered means cooperating with said last mentioned means for holding the seval parts in their forced position, a spacer i. c between the jaws and means for holdlug casing provided with a central aperture, a bushing tightly fitting within said aperture, and the rear end of the rod, casing and bushing being provided with the registering passageways and openings for supplying grease to the bushing.

41-. A main rod for a locomotive, the rear end of which is provided with jaws, a casing slid-ably movable within said jaws, a wedge member fitting below said casing and one wall of the casing being beveled to cooperate with said wedge member, a tapered rod pass: ing through said jaws and adapted to cont ct with the base of the wedge member, and means for pulling up on the tapered rod to thereby force the casing through the medium oi' the wedge tightly in position, a spacer block between said jaws to limit the compression on said jaws, said casing provided with an aperture, a bushing within the aperture, and a groove located in said casing extending about the aperture, the bushing provided with a plurality of open ings registering with the groove, and the casing and rear end of the rod provided with passageways to permit grease to be torced into the bushing.

In testin'iony whereof I ailir; my signature.

EDWARD M. CARROLL.

the spacer block in position, the said lit) 

